| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 14 |
0.9%
|
| -7 | Does not apply (spontaneous) | 262 |
16.7%
|
| 0 | Below required | 101 |
6.4%
|
| 1 | As required | 1055 |
67.1%
|
| 2 | Above required | 141 |
9%
|